Q: Is 120,220,221 a Prime Number?

 A: No, 120,220,221 is not a prime number.

Why is 120,220,221 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 120220221 can be evenly divided by 1 3 11 33 89 267 979 2,937 40,933 122,799 450,263 1,350,789 3,643,037 10,929,111 40,073,407 and 120,220,221, with no remainder.

Since 120,220,221 cannot be divided by just 1 and 120,220,221, it is not a prime number.


More Examples

Number 120,220,219120,220,220120,220,222120,220,223
Prime? nononoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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